Sand-molding machine.



No. a51,125.- I 'PATENTED AP R.23,-1907.- a1. FLEMING, P. YJ. TRUB & w. H. BLAGKTON.

SAND MOLDING MACHINE. APPLICATION FILED JULY19,1906.

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- No. 851,125." PATENTED APR. 23, 1907.

J. J. FLEMING, P. J. TRUE 6: W. H. BLAGKTON.

SAND MOLDING MACHINE.

APPLIUATION FILED mum. 190s.

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No. 351,125. PATE'JNTED APR. 23, 1907.- J. J. FLEMING, P. J. TRUB & W. H. BLAGKTON.

SAND MOLDING MACHINE, APPLIUATION FILED JULY 19.1906.

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UNITED STATES PATENT oEEIoE JOHN J. FLEMING, PHILIP J. TRUB, AND WILLIAM H. BLACKTON, OF

PHILADELPHIA, PENNSYLVANIA.

SAND-MOLDING MACHINE.

Specification of Letters Patent.

1'ate11ted April 23, 1907.

Application filed July 19.1906. Serial No. 326.938.

T0 at whom it may concern:

Be it known that we, JOHN J. FLEMING, PHILIP J. TRUB, and WILLIAM H. BLACK- TON, citizens of the United States, and residents of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have jointly invented certain new and useful Improvements in Sand-Molding Machines, of which the following is a specification.

The invention relates to apparatus for the making of sand molds for casting pipes and other cylindrical metallic forms and has special reference to that class of apparatus employed in forming sand molds by what is termed a vibratory or jarring process.

The general object of the present inven tion is to provide a comparatively inexpensive and simple construction of such machines, whereby the sand may be evenly compacted around the pattern in the flask and the flask containing the mold-cavity easily and quickly withdrawn from the pattern.

Other objects and advantages of the in vention will appear hereinafter.

The invention consists of th eimprovements hereinafter described and finally claimed.

The nature characteristic features and scope of the invention will be more fully understood from the following description taken in connection withthe accompanying drawings forming part hereof and in which Figure 1. is a side elevational view of a sand molding machine embodying the invention. Fig. 2. is a sectional view taken upon the line 22 of Fig. 1. in the direction of the arrows, and Fig. 3. is an elevational view, partly in section, of the front of the machine, illustrating the flask removed from the pattern table.

The machine is su ported upon a suitable base plate a, to whic1 are bolted the standards b, and b, provided with suitable journal boxes for the main driving shaft 0, and the counter shaft d. Arranged vertically of the machine and afforded a reciprocal motion in a manner hereinafter to be pointed out, is a pattern table c, equipped with a vertically disposed pattern, f. This pattern table e, is provided with lugs g, as are the standards I), and rods h, penetrating these lugs from guides for retaining the said pattern table in proper alignment in its upward and downward movements. The pattern table 6, is

provided with a cam face i, to accommodate the cam j, and its complemental excentric pin 7c. As shown the cam j, is rotatably car ried by the counter shaft d, and the said shaft has motion imparted to it through the instrumentality of suitable gearing, Z, from the main driving shaft 0. Interposed between the standards 6 and the pattern table 6, is a coil spring m, for insuring of the prompt return of the pattern table to the anvil n, upon the base plate a. Arranged vertically of the pattern table are a pair of sliding rods 0, equipped with wedge shaped projections 19, adapted to engage similar projections 19, upon the pattern table, through the instrumentality of the shaft g, its levers r, pin connection s, and hand lever t. These rods 0, carry clamping members a, that are adapted to co-operate with the flask v, to secure and release said flask with respect to the pattern table. As shown the flask o, is provided with lugs 12, upon which the clamping members are caused to impinge, and the flask is also equipped with pins 0 adapted to be inserted into openings Q2 in the pattern table. Located above the flask v, is a two part hopper w, carried by the standards of the machine and so arranged that the parts telescope one another to permit of the reciprocation of the pattern table. As shown guides w, tend to keep the various parts in proper alignment.

9c and 2c are shafts located upon the pattern table, each having a lever 91: connected by a link 00 and operated by a hand lever 03*. x are cams carried by the said shafts and are adapted to impart a lateral motion to the pattern f, for a purpose to be presently described.

The pattern f, is rotatably held in the slotted portion of the pattern table by means of straps f and has interposed between it and the said pattern table coil springsf f are flanges upon the pattern for forming Within the sand-mold suitable indentations, if desirable for instance in the case of pipe manufacturing. In such case it would be necessary to rotate the pattern and for the purpose a gear wheel 2, may be carried by the pattern as shown, adapted to mesh with a pinion y, carried by a spring controlled and slidable shaft y This shaft may be equipped with a worm gear 3 adapted to mesh with the worm gear if, when the shaft is moved into proper position for imparting a rotating movement to the pattern.

The operation of the above described machinemay be described as follows: IVhere it is desired to build a mold in the flask o, the same is placed concentric with the vertically, laterally and rotatably movable pattern f, the basal flange of which flts around the lower part of the said pattern, and the flask secured to the pattern table 0, by the clamping members a, through the intervention of the parts 9, 1", s and t, as above described.

permits the pattern table to drop, assisted by' the coil spring 712, to the anvil 'n, with a jar, and in this manner imparts a jar to the sand within the flask, gradually packing the sand. and forming the mold. After a suflicient number of jars have been imparted to the mold, the power to the shaft 0, may be stopped and the table brought to rest. The clamps holding the flask are then released, and. the hand lever 00'' operated to cause the cams ac, to push outward or laterally of the machine the pattern together with the flask and mold whereupon the said flask and mold may be removed, ready for casting, and the pattern returned to its normal position and another flask secured to the pattern table as described. Should the mold. being formed be for a pipe wherein recesses are required, the shaft y, may be shifted so as to bring the gears 1 and y, into engagement with the worm g and the gear wheel 2, upon the pattern, whereupon a rotating motion is imparted to the pattern after the jarring motion has been stopped and prior to unclamping the flask, thus causing the flanges f, to be embedded in the sand of the mold and groove therein the required recesses. Subsequently the shaft y may be re-shifted and the above recited manner of removing the flask resorted to. v

We do not intend by the use of any technical terms herein to limit our invention there by or in any way other than the prior state of the art may require, but;

Having thus described the nature and ob- .jects of the invention what we claim as new and desire to secure by Letters Patent is z 1. In a machine of the class described, the combination of a vertically reciprocating pattern table, a pattern carried thereby and movable laterally thereof, a flask adapted to be carried by said table, means of imparting said lateral movement to the pattern, and

means for reciprocating the said pattern table.

2. In a machine of the class described, the combination of a vertically reciprocating pattern table, a pattern supported thereby and movable laterally'thereof, a flask adapted to be carried by said table, cam devices for imparting said lateral movement to the pattern and means for reciprocating the said pattern table.

3. In a machine of the class described, the combination of a vertically reciprocating pattern table, a pattern sup orted thereby and movable laterally thereo a flask adapted to be carried by said table, a hopper mounted above the flask, an anvil, a cam device for imparting said lateral movement to the pattern and means forreciprocating the said pattern.

4. In a machine of the class described, the combination of a vertically reciprocating pattern table, a pattern supported thereby and movable laterally thereof, a flask adapted to be carried by said table, a hopper mounted above the flask, a movable section between the hopper and flask, an anvil, a cam device for imparting said lateral movement to the pattern and means for reciprocating the said pattern.

5. In a machine of the class described, the combination of a vertically reciprocating pattern table, a pattern supported thereby and movable laterally thereof, a flask carried by the table, clamping means for the flask, a hopper, cam devices for imparting said lateral movement to the pattern, and means for reciprocating the said pattern.

6. A machine of the class described, comprising a vertically reciprocating pattern table, a pattern journaled therein and movable laterally thereof, a flask carried by the table means for imparting a rotatable and lateral motion to said pattern and means for reciprocating the pattern.

7. A machine of the class described comprising standards carrying a hopper, a vertically reciprocating pattern table supported by said standards, a pattern capable of rotary and lateral motion in relation to the table and carried thereby, a flask, an anvil, clamps for the flask, spring controlled means for shifting the pattern, means for revolving the pattern, a coil spring between the standards and pattern table and means for reciprocating the said pattern.

In testimony whereof we have hereunto set our hands and seals.

JOHN J. FLEMING. [L. s.] PHILIP J. TRUB. [L. s] WILLIAM H. BLAOKTON. [L. s]

In presence of W. J. JAoKsoN, PAUL V. CoNNoLLY. 

